(function( $ ){
    // 当domReady的时候开始初始化
    $(function() {
        //uploader   dndArea   filePicker
        $(".upload_box").each(function(i, j){
            var $wrap = $(j);

            // 图片容器
            var $queue = $( '<ul class="filelist"></ul>' )
                .appendTo( $wrap.find( '.queueList' ) ),

            // 状态栏，包括进度和控制按钮
            $statusBar = $wrap.find( '.statusBar' ),

            // 文件总体选择信息。
            $info = $statusBar.find( '.info' ),

            // 上传按钮
            $upload = $wrap.find( '.uploadBtn' ),

            // 没选择文件之前的内容。
            $placeHolder = $wrap.find( '.placeholder' ),

            $progress = $statusBar.find( '.progress' ).hide(),

            // 添加的文件数量
            fileCount = 0,

            // 添加的文件总大小
            fileSize = 0,

            // 优化retina, 在retina下这个值是2
            ratio = window.devicePixelRatio || 1,

            // 缩略图大小
            thumbnailWidth = 110 * ratio,
            thumbnailHeight = 110 * ratio,

            // 可能有pedding, ready, uploading, confirm, done.
            state = 'pedding',

            // 所有文件的进度信息，key为file id
            percentages = {},
            // 判断浏览器是否支持图片的base64
            isSupportBase64 = ( function() {
                var data = new Image();
                var support = true;
                data.onload = data.onerror = function() {
                    if( this.width != 1 || this.height != 1 ) {
                        support = false;
                    }
                }
                data.src = "";
                return support;
            } )(),

            // 检测是否已经安装flash，检测flash的版本
            flashVersion = ( function() {
                var version;

                try {
                    version = navigator.plugins[ 'Shockwave Flash' ];
                    version = version.description;
                } catch ( ex ) {
                    try {
                        version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
                                .GetVariable('$version');
                    } catch ( ex2 ) {
                        version = '0.0';
                    }
                }
                version = version.match( /\d+/g );
                return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );
            } )(),

            supportTransition = (function(){
                var s = document.createElement('p').style,
                    r = 'transition' in s ||
                            'WebkitTransition' in s ||
                            'MozTransition' in s ||
                            'msTransition' in s ||
                            'OTransition' in s;
                s = null;
                return r;
            })(),

            // WebUploader实例
            uploader;

            if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {

                // flash 安装了但是版本过低。
                if (flashVersion) {
                    (function(container) {
                        window['expressinstallcallback'] = function( state ) {
                            switch(state) {
                                case 'Download.Cancelled':
                                    alert('您取消了更新！')
                                    break;

                                case 'Download.Failed':
                                    alert('安装失败')
                                    break;

                                default:
                                    alert('安装已成功，请刷新！');
                                    break;
                            }
                            delete window['expressinstallcallback'];
                        };

                        var swf = './expressInstall.swf';
                        // insert flash object
                        var html = '<object type="application/' +
                                'x-shockwave-flash" data="' +  swf + '" ';

                        if (WebUploader.browser.ie) {
                            html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                        }

                        html += 'width="100%" height="100%" style="outline:0">'  +
                            '<param name="movie" value="' + swf + '" />' +
                            '<param name="wmode" value="transparent" />' +
                            '<param name="allowscriptaccess" value="always" />' +
                        '</object>';

                        container.html(html);

                    })($wrap);

                // 压根就没有安转。
                } else {
                    $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
                }

                return;
            } else if (!WebUploader.Uploader.support()) {
                alert( 'Web Uploader 不支持您的浏览器！');
                return;
            }
            if($(j).attr('file_nums') > 0){
                fileNumLimit = $(j).attr('file_nums');
            }
            // 实例化
            if($wrap.closest(".layui-form-item").find("#token").length > 0){
                var formData = {token:$wrap.closest(".layui-form-item").find("#token").val()};
                if($wrap.closest(".layui-form-item").find("#key").length > 0){
                    formData.key = $wrap.closest(".layui-form-item").find("#key").val();
                }
                uploader = WebUploader.create({
                    pick: {
                        id: '#'+$(j).find(".filePicker").attr("id"),
                        label: '点击选择图片'
                    },
                    dnd: '#'+$(j).find(".dndArea").attr("id"),
                    paste: '#'+$(j).attr("id"),
                    chunked: false,
                    chunkSize: 512 * 1024,
                    server: 'http://up-z0.qiniu.com/',
                    /*accept: {
                        title: 'Images',
                        extensions: 'gif,jpg,jpeg,bmp,png',
                        mimeTypes: 'image/*'
                    },*/
                    swf: '/static/public/webupload/Uploader.swf',
                    // formData: {'thumb':thumb,'dire':dire},
                    formData:formData,
                    // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                    fileNumLimit: fileNumLimit,
                    fileSizeLimit: 200 * 1024 * 1024,    // 200 M
                    fileSingleSizeLimit: 50 * 1024 * 1024
                });
            }else if($wrap.closest(".layui-form-item").find("#writetoken").length > 0){
                uploader = WebUploader.create({
                    pick: {
                        id: '#'+$(j).find(".filePicker").attr("id"),
                        label: '点击选择视频'
                    },
                    dnd: '#'+$(j).find(".dndArea").attr("id"),
                    paste: '#'+$(j).attr("id"),
                    chunked: false,
                    chunkSize: 51200 * 1024,
                    server: 'http://v.polyv.net/uc/services/rest?method=uploadfile',
                    swf: '/static/public/webupload/Uploader.swf',
                    fileVal:'Filedata',
                    formData:{ 'writetoken':'RIKQ5EK60tPxtwA-lScPcXwlQIiWsUHx', 'JSONRPC' : '{"title": "这里是标题", "tag": "标签", "desc": "视频文档描述"}', 'cataid':'1483167876973'},
                    // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                    fileNumLimit: fileNumLimit,
                    fileSizeLimit: 20000 * 1024 * 1024,    // 200 M
                    fileSingleSizeLimit: 50000 * 1024 * 1024
                });
            }else{
                uploader = WebUploader.create({
                    pick: {
                        id: '#'+$(j).find(".filePicker").attr("id"),
                        label: '点击选择文件'
                    },
                    dnd: '#'+$(j).find(".dndArea").attr("id"),
                    paste: '#'+$(j).attr("id"),
                    chunked: false,
                    chunkSize: 512 * 1024,
                    server: '/upload/upexcel',
                    /*accept: {
                        title: 'Images',
                        extensions: 'gif,jpg,jpeg,bmp,png',
                        mimeTypes: 'image/*'
                    },*/
                    swf: '/static/public/webupload/Uploader.swf',
                    // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                    fileNumLimit: fileNumLimit,
                    fileSizeLimit: 200 * 1024 * 1024,    // 200 M
                    fileSingleSizeLimit: 50 * 1024 * 1024
                });    
            }
            


            // 拖拽时不接受 js, txt 文件。
            uploader.on( 'dndAccept', function( items ) {
                var denied = false,
                    len = items.length,
                    i = 0,
                    // 修改js类型
                    unAllowed = 'text/plain;application/javascript ';

                for ( ; i < len; i++ ) {
                    // 如果在列表里面
                    if ( ~unAllowed.indexOf( items[ i ].type ) ) {
                        denied = true;
                        break;
                    }
                }

                return !denied;
            });

            // uploader.on('filesQueued', function() {
            //     uploader.sort(function( a, b ) {
            //         if ( a.name < b.name )
            //           return -1;
            //         if ( a.name > b.name )
            //           return 1;
            //         return 0;
            //     });
            // });

            // 添加“添加文件”的按钮，
            uploader.addButton({
                id: '#'+$(j).find(".filePickerBut").attr("id"),
                label: '继续添加'
            });

            uploader.on('ready', function() {
                window.uploader = uploader;
            });

            // 当有文件添加进来时执行，负责view的创建
            function addFile( file ) {
                var $li = $( '<li id="' + file.id + '">' +
                        '<p class="title">' + file.name + '</p>' +
                        '<p class="imgWrap"></p>'+
                        '<p class="progress"><span></span></p>' +
                        '</li>' ),

                    /*$btns = $('<div class="file-panel">' +
                        '<span class="cancel">删除</span>' +
                        '<span class="rotateRight">向右旋转</span>' +
                        '<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),*/
                    $btns = $('<div class="file-panel">' +
                        '<span class="cancel">删除</span>').appendTo( $li ),
                    $prgress = $li.find('p.progress span'),
                    $wrap = $li.find( 'p.imgWrap' ),
                    $info = $('<p class="error"></p>'),
                    showError = function( code ) {
                        switch( code ) {
                            case 'exceed_size':
                                text = '文件大小超出';
                                break;

                            case 'interrupt':
                                text = '上传暂停';
                                break;

                            default:
                                text = '上传失败，请重试';
                                break;
                        }

                        $info.text( text ).appendTo( $li );
                    };
                    // alert($("#"+file.id).closest('.control-group').html())
                    // alert($(j).closest('.control-group').html())
                    if($(j).attr("nedd_url") == 1){
                        var url_i = $(".img_url_input").length;
                        var url_html = '<div class="control-group oi_re img_url_input">';
                        url_html += '<label class="control-label" for="typeahead">图'+parseInt(url_i + 1)+'链接地址： </label>';
                        url_html += '<div class="controls"><input type="text" value="" name="image_url_address[]" class="inputxt-xlarge" style="width:500px;"></div>';
                        url_html += '</div>';
                        $(".img_hidd").remove();
                        if(url_i > 0){
                            $(".img_url_input:last").after(url_html)
                        }else{
                            $(j).closest('.control-group').after(url_html)
                        }
                    }
                    if($(j).attr("nedd_url") == 2){
                        var url_i = $(".img_url_input").length;
                        if(url_i > 0){
                            url_i=url_i/2;
                        }
                        var url_html = '<div class="control-group oi_re img_url_input" id="image_title_'+file.id+'">';
                        url_html += '<label class="control-label" for="typeahead">图集'+parseInt(url_i + 1)+'标题： </label>';
                        url_html += '<div class="controls"><input type="text" class="inputxt-xlarge Validform_error" name="image_title[]" value=""></div>';
                        url_html += '</div>';
                        url_html += '<div class="control-group oi_re img_url_input" id="image_desc_'+file.id+'">';
                        url_html += '<label class="control-label" for="typeahead">图集'+parseInt(url_i + 1)+'描述： </label>';
                        url_html += '<div class="controls"><textarea  name="image_desc[]"   rows="4" class="inputxt-xlarge " style="width:500px;height:100px;"></textarea></div>';
                        url_html += '</div>';
                        $(".img_hidd").remove();
                        if(url_i > 0){
                            $(".img_url_input:last").after(url_html)
                        }else{
                            $(j).closest('.control-group').after(url_html)
                        }
                    }
                    
                if ( file.getStatus() === 'invalid' ) {
                    showError( file.statusText );
                } else {
                    // @todo lazyload
                    $wrap.text( '预览中' );
                    uploader.makeThumb( file, function( error, src ) {
                        var img;

                        if ( error ) {
                            $wrap.text( '不能预览' );
                            return;
                        }

                        if( isSupportBase64 ) {
                            img = $('<img src="'+src+'">');
                            $wrap.empty().append( img );
                        } else {
                            $.ajax('../../server/preview.php', {
                                method: 'POST',
                                data: src,
                                dataType:'json'
                            }).done(function( response ) {
                                if (response.result) {
                                    img = $('<img src="'+response.result+'">');
                                    $wrap.empty().append( img );
                                } else {
                                    $wrap.text("预览出错");
                                }
                            });
                        }
                    }, thumbnailWidth, thumbnailHeight );

                    percentages[ file.id ] = [ file.size, 0 ];
                    file.rotation = 0;
                }

                file.on('statuschange', function( cur, prev ) {
                    if ( prev === 'progress' ) {
                        $prgress.hide().width(0);
                    } else if ( prev === 'queued' ) {
                        $li.off( 'mouseenter mouseleave' );
                        $btns.remove();
                    }

                    // 成功
                    if ( cur === 'error' || cur === 'invalid' ) {
                        console.log( file.statusText );
                        showError( file.statusText );
                        percentages[ file.id ][ 1 ] = 1;
                    } else if ( cur === 'interrupt' ) {
                        showError( 'interrupt' );
                    } else if ( cur === 'queued' ) {
                        percentages[ file.id ][ 1 ] = 0;
                    } else if ( cur === 'progress' ) {
                        $info.remove();
                        $prgress.css('display', 'block');
                    } else if ( cur === 'complete' ) {
                        $li.append( '<span class="success"></span>' );
                    }

                    $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
                });

                $li.on( 'mouseenter', function() {
                    $btns.stop().animate({height: 30});
                });

                $li.on( 'mouseleave', function() {
                    $btns.stop().animate({height: 0});
                });

                $btns.on( 'click', 'span', function() {
                    var index = $(this).index(),
                        deg;

                    switch ( index ) {
                        case 0:
                            uploader.removeFile( file );
                            return;

                        case 1:
                            file.rotation += 90;
                            break;

                        case 2:
                            file.rotation -= 90;
                            break;
                    }

                    if ( supportTransition ) {
                        deg = 'rotate(' + file.rotation + 'deg)';
                        $wrap.css({
                            '-webkit-transform': deg,
                            '-mos-transform': deg,
                            '-o-transform': deg,
                            'transform': deg
                        });
                    } else {
                        $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
                        // use jquery animate to rotation
                        // $({
                        //     rotation: rotation
                        // }).animate({
                        //     rotation: file.rotation
                        // }, {
                        //     easing: 'linear',
                        //     step: function( now ) {
                        //         now = now * Math.PI / 180;

                        //         var cos = Math.cos( now ),
                        //             sin = Math.sin( now );

                        //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                        //     }
                        // });
                    }


                });

                $li.appendTo( $queue );
            }

            // 负责view的销毁
            function removeFile( file ) {
                var $li = $('#'+file.id);

                delete percentages[ file.id ];
                updateTotalProgress();
                $li.off().find('.file-panel').off().end().remove();
            }

            function updateTotalProgress() {
                var loaded = 0,
                    total = 0,
                    spans = $progress.children(),
                    percent;

                $.each( percentages, function( k, v ) {
                    total += v[ 0 ];
                    loaded += v[ 0 ] * v[ 1 ];
                } );

                percent = total ? loaded / total : 0;


                spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
                spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
                updateStatus();
            }

            function updateStatus() {
                var text = '', stats;

                if ( state === 'ready' ) {
                    text = '选中' + fileCount + '张图片，共' +
                            WebUploader.formatSize( fileSize ) + '。';
                } else if ( state === 'confirm' ) {
                    stats = uploader.getStats();
                    if ( stats.uploadFailNum ) {
                        text = '已成功上传' + stats.successNum+ '张照片至XX相册，'+
                            stats.uploadFailNum + '张照片上传失败，<a class="retry" href="javascript:;">重新上传</a>失败图片'
                    }

                } else {
                    stats = uploader.getStats();
                    text = '共' + fileCount + '张（' +
                            WebUploader.formatSize( fileSize )  +
                            '），已上传' + stats.successNum + '张';

                    if ( stats.uploadFailNum ) {
                        text += '，失败' + stats.uploadFailNum + '张';
                    }
                }

                $info.html( text );
            }

            function setState( val ) {
                var file, stats;

                if ( val === state ) {
                    return;
                }

                $upload.removeClass( 'state-' + state );
                $upload.addClass( 'state-' + val );
                state = val;

                switch ( state ) {
                    case 'pedding':
                        $placeHolder.removeClass( 'element-invisible' );
                        $queue.hide();
                        $statusBar.addClass( 'element-invisible' );
                        uploader.refresh();
                        break;

                    case 'ready':
                        $placeHolder.addClass( 'element-invisible' );
                        $( '#filePicker2' ).removeClass( 'element-invisible');
                        $queue.show();
                        $statusBar.removeClass('element-invisible');
                        uploader.refresh();
                        break;

                    case 'uploading':
                        $( '#filePicker2' ).addClass( 'element-invisible' );
                        $progress.show();
                        $upload.text( '暂停上传' );
                        break;

                    case 'paused':
                        $progress.show();
                        $upload.text( '继续上传' );
                        break;

                    case 'confirm':
                        $progress.hide();
                        $( '#filePicker2' ).removeClass( 'element-invisible' );
                        $upload.text( '开始上传' );

                        stats = uploader.getStats();
                        if ( stats.successNum && !stats.uploadFailNum ) {
                            setState( 'finish' );
                            return;
                        }
                        break;
                    case 'finish':
                        stats = uploader.getStats();
                        if ( stats.successNum ) {
                            // alert( '上传成功' );
                        } else {
                            // 没有成功的图片，重设
                            state = 'done';
                            location.reload();
                        }
                        break;
                }

                updateStatus();
            }

            uploader.onUploadProgress = function( file, percentage ) {
                var $li = $('#'+file.id),
                $percent = $li.find('.progress span');
                $percent.css( 'width', percentage * 100 + '%' );
                percentages[ file.id ][ 1 ] = percentage;
                updateTotalProgress();
            };

            uploader.on('uploadSuccess', function (file, response) {//上传成功事件
                if($wrap.find(".upload_img_input").length > 0){
                    var input_box = $wrap.find(".upload_img_input");
                    var name = input_box.attr("input_name");
                    if($wrap.closest(".layui-form-item").find("#token").length > 0 && $wrap.closest(".layui-form-item").find("#token").val() != ''){
                        var input = '<input type="hidden" value="'+response.key+'" name="'+name+'" />';
                    }else if($wrap.closest(".layui-form-item").find("#writetoken").length > 0){
                        var input = '<input type="hidden" value="'+response.data[0].mp4+'" name="'+name+'" /><input type="hidden" value="'+response.data[0].duration+'" name="duration" /><input type="hidden" value="'+response.data[0].images_b[0]+'" name="image_url" />';

                    }else{
                        var input = '<input type="hidden" value="'+response.file_name+'" name="'+name+'" />';
                    }
                    
                    input_box.append(input);
                }
                 if($("#excel_import").length > 0){
                    var html = '';
                    if(response.code == 201){
                        alert("每次导入不能超过100条数据");
                        return false;
                    }
                    $.each( response.data, function( i, j ) {
                        html += '<tr>';
                        // console.log(j[0])
                        html += '<td class="center">'+i+'</td>';
                        html += '<td class="center">'+j[0]+'</td>';
                        html += '<td class="center">自有</td>';
                        html += '<td class="center">'+j[2]+'</td>';
                        html += '<td class="center">'+j[1]+'</td>';
                        html += '</tr>';
                    });
                    $("#excel_import").append(html)
                }
            });

            uploader.onFileQueued = function( file ) {
                fileCount++;
                fileSize += file.size;

                if ( fileCount === 1 ) {
                    $placeHolder.addClass( 'element-invisible' );
                    $statusBar.show();
                }

                addFile( file );
                setState( 'ready' );
                updateTotalProgress();
            };

            uploader.onFileDequeued = function( file ) {
                fileCount--;
                fileSize -= file.size;

                if ( !fileCount ) {
                    setState( 'pedding' );
                }

                removeFile( file );
                updateTotalProgress();

            };

            uploader.on( 'all', function( type ) {
                var stats;
                switch( type ) {
                    case 'uploadFinished':
                        setState( 'confirm' );
                        break;

                    case 'startUpload':
                        setState( 'uploading' );
                        break;

                    case 'stopUpload':
                        setState( 'paused' );
                        break;

                }
            });

            uploader.onError = function( code ) {
                alert( 'Eroor: ' + code );
            };

            $upload.on('click', function() {
                if ( $(this).hasClass( 'disabled' ) ) {
                    return false;
                }

                if ( state === 'ready' ) {
                    uploader.upload();
                } else if ( state === 'paused' ) {
                    uploader.upload();
                } else if ( state === 'uploading' ) {
                    uploader.stop();
                }
            });

            $info.on( 'click', '.retry', function() {
                uploader.retry();
            } );

            $info.on( 'click', '.ignore', function() {
                alert( 'todo' );
            } );

            $upload.addClass( 'state-' + state );
            updateTotalProgress();
        });
        })
        

})( jQuery );